Area code 312

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General Info

Area code 312 is in Illinois (IL). Popular cities using area code 312 are Chicago, see full list here

The timezone within area code 312 is (America/Chicago). The current time is 19:00:54

Popular zip codes include 60629(Chicago), 60623(Chicago), 60632(Chicago), see full list here

Area code 312 Map

Here is the full area code map for state Illinois

312

Popular Cities

City Name State Population Percent of area code in city Percent of city in area code
Chicago Illinois 2695598 100 8
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Popular Zip Codes

Zip Code Primary City County State Timezone Population Housing Count
60629 Chicago Cook County Illinois America/Chicago 113916 34000
60623 Chicago Cook County Illinois America/Chicago 92108 30931
60632 Chicago Cook County Illinois America/Chicago 91326 27057
60647 Chicago Cook County Illinois America/Chicago 87291 38453
60804 Cicero Cook County Illinois America/Chicago 84573 24986
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